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SportTrac Discussion
Engine & Drivetrain
2003 Idle - missing - I give up
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<blockquote data-quote="shawn stonbraker 2" data-source="post: 909947" data-attributes="member: 62109"><p>I also have a 2003, and have had the same symptoms you are describing during idle from day one. It has never idled "smooth". Now during driving conditions, it runs nice and smooth, just during idle (in park or at a stop light) there is what I call a "hick-up". </p><p></p><p></p><p></p><p>I'm wondering if maybe you have a bad MAF sensor. Not bad enough to give a code, but may have some oil on there from the K&N filter. I did notice my "hick-up" lightening up after I bought an Oiless Cone Filter off Todd. Took off the oiled cone and cleaned the entire intake including the MAF and put the oiless one on.</p><p></p><p></p><p></p><p>On a side note, I learned first hand about off brand (not OEM) spark plugs and the Ford 4.0 engine. Thay don't play nice together. What brand was in there before you put the Iridiums in?</p></blockquote><p></p>
[QUOTE="shawn stonbraker 2, post: 909947, member: 62109"] I also have a 2003, and have had the same symptoms you are describing during idle from day one. It has never idled "smooth". Now during driving conditions, it runs nice and smooth, just during idle (in park or at a stop light) there is what I call a "hick-up". I'm wondering if maybe you have a bad MAF sensor. Not bad enough to give a code, but may have some oil on there from the K&N filter. I did notice my "hick-up" lightening up after I bought an Oiless Cone Filter off Todd. Took off the oiled cone and cleaned the entire intake including the MAF and put the oiless one on. On a side note, I learned first hand about off brand (not OEM) spark plugs and the Ford 4.0 engine. Thay don't play nice together. What brand was in there before you put the Iridiums in? [/QUOTE]
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SportTrac Discussion
Engine & Drivetrain
2003 Idle - missing - I give up
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